In several European countries, fructose and fructose-rich syrups are presently produced from starch as isoglucose or directly from chicory roots as inuline syrup. Other promising crops for this production seem to be the Jerusalem artichoke, particularly for southern European countries, and cereals of C3type. During the growing cycle of the Jerusalem artichoke, fructose polymers are accumulated in the stalks up to the late phase of flowering and they are then transferred and stored in the tubers. The Jerusalem artichoke can also be used as a perennial sugar crop by only harvesting the stalks for many years around the flowering time before the carbohydrate translocation to the tubers occurs. Cereals represent an other interesting source of fructans, which are produced and stored in the stems and leaves. Extensive investigations have been carried out by the authors both on Jerusalem artichoke as well as barley, durum and bread wheat. For what concerns the cereals, the accumulation of fructans in the stems has been studied over a 3-year period with the durum wheat resulting as the most promising species. In this crop, a low nitrogen fertilisation increases the fructose content of the stems. Immature seeds, a valuable co-product, could also be obtained from wheat.
All Science Journal Classification (ASJC) codes
- Agronomy and Crop Science
- Food Science
D'Egidio, M. G., Cecchini, C., Cervigni, T., Donini, B., & Pignatelli, V. (1998). Production of fructose from cereal stems and polyannual cultures of Jerusalem artichoke. Industrial Crops and Products, 7(2-3), 113 - 119. https://doi.org/10.1016/S0926-6690(97)00039-3